ABAP Select data from SAP table VBKA_LISTE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VBKA_LISTE table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to VBKA_LISTE. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the VBKA_LISTE table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_VBKA_LISTE TYPE STANDARD TABLE OF VBKA_LISTE,
      WA_VBKA_LISTE TYPE VBKA_LISTE,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <VBKA_LISTE> TYPE VBKA_LISTE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VBKA_LISTE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VBKA_LISTE
  INTO TABLE IT_VBKA_LISTE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VBKA_LISTE
*  INTO TABLE @DATA(IT_VBKA_LISTE2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_VBKA_LISTE INDEX 1 INTO DATA(WA_VBKA_LISTE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VBKA_LISTE ASSIGNING <VBKA_LISTE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VBKA_LISTE>-VBELN = 1.
<VBKA_LISTE>-ERDAT = 1.
<VBKA_LISTE>-ERZET = 1.
<VBKA_LISTE>-ERNAM = 1.
<VBKA_LISTE>-AEDAT = 1.

ENDLOOP.

LOOP AT IT_VBKA_LISTE INTO WA_VBKA_LISTE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VBKA_LISTE-AEZET, sy-vline,
  WA_VBKA_LISTE-AENAM, sy-vline,
  WA_VBKA_LISTE-KTAAR, sy-vline,
  WA_VBKA_LISTE-VBTYP, sy-vline,
  WA_VBKA_LISTE-TRVOG, sy-vline,
  WA_VBKA_LISTE-VKORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VBKA_LISTE you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_VBKA_LISTE TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_VBKA_LISTE INTO WA_VBKA_LISTE.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBKA_LISTE-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBKA_LISTE-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBKA_LISTE-VGBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBKA_LISTE-VGBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBKA_LISTE-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBKA_LISTE-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_VBKA_LISTE-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBKA_LISTE-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR_VBKA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VBKA_LISTE-ADRNR_VBKA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VBKA_LISTE-ADRNR_VBKA.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VBKA_LISTE_STR, 
VBELN TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZET TYPE STRING,
AENAM TYPE STRING,
KTAAR TYPE STRING,
VBTYP TYPE STRING,
TRVOG TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
KTABG TYPE STRING,
KTAEN TYPE STRING,
KTABT TYPE STRING,
KTAET TYPE STRING,
KTAGR TYPE STRING,
KTAST TYPE STRING,
KTAER TYPE STRING,
KTAEB TYPE STRING,
KTAFK TYPE STRING,
KTADA TYPE STRING,
KTARA TYPE STRING,
VGBEL TYPE STRING,
KTEXT TYPE STRING,
SUBMI TYPE STRING,
VBKLA TYPE STRING,
VBKLT TYPE STRING,
KTA01 TYPE STRING,
KTA02 TYPE STRING,
KTA03 TYPE STRING,
KTA04 TYPE STRING,
KTA05 TYPE STRING,
KTA06 TYPE STRING,
KTA07 TYPE STRING,
KTA08 TYPE STRING,
KTA09 TYPE STRING,
KTA10 TYPE STRING,
KUNNR TYPE STRING,
GBSTK TYPE STRING,
PARVW TYPE STRING,
ADRNR_VBKA TYPE STRING,
ZPERS TYPE STRING,
NAME_ZPERS TYPE STRING,
PARNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VBKA_LISTE_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_VBKA_LISTE_STR-VBELN sy-vline 
WA_VBKA_LISTE_STR-ERDAT sy-vline 
WA_VBKA_LISTE_STR-ERZET sy-vline 
WA_VBKA_LISTE_STR-ERNAM sy-vline 
WA_VBKA_LISTE_STR-AEDAT sy-vline 
WA_VBKA_LISTE_STR-AEZET sy-vline 
WA_VBKA_LISTE_STR-AENAM sy-vline 
WA_VBKA_LISTE_STR-KTAAR sy-vline 
WA_VBKA_LISTE_STR-VBTYP sy-vline 
WA_VBKA_LISTE_STR-TRVOG sy-vline 
WA_VBKA_LISTE_STR-VKORG sy-vline 
WA_VBKA_LISTE_STR-VTWEG sy-vline 
WA_VBKA_LISTE_STR-SPART sy-vline 
WA_VBKA_LISTE_STR-VKBUR sy-vline 
WA_VBKA_LISTE_STR-VKGRP sy-vline 
WA_VBKA_LISTE_STR-KTABG sy-vline 
WA_VBKA_LISTE_STR-KTAEN sy-vline 
WA_VBKA_LISTE_STR-KTABT sy-vline 
WA_VBKA_LISTE_STR-KTAET sy-vline 
WA_VBKA_LISTE_STR-KTAGR sy-vline 
WA_VBKA_LISTE_STR-KTAST sy-vline 
WA_VBKA_LISTE_STR-KTAER sy-vline 
WA_VBKA_LISTE_STR-KTAEB sy-vline 
WA_VBKA_LISTE_STR-KTAFK sy-vline 
WA_VBKA_LISTE_STR-KTADA sy-vline 
WA_VBKA_LISTE_STR-KTARA sy-vline 
WA_VBKA_LISTE_STR-VGBEL sy-vline 
WA_VBKA_LISTE_STR-KTEXT sy-vline 
WA_VBKA_LISTE_STR-SUBMI sy-vline 
WA_VBKA_LISTE_STR-VBKLA sy-vline 
WA_VBKA_LISTE_STR-VBKLT sy-vline 
WA_VBKA_LISTE_STR-KTA01 sy-vline 
WA_VBKA_LISTE_STR-KTA02 sy-vline 
WA_VBKA_LISTE_STR-KTA03 sy-vline 
WA_VBKA_LISTE_STR-KTA04 sy-vline 
WA_VBKA_LISTE_STR-KTA05 sy-vline 
WA_VBKA_LISTE_STR-KTA06 sy-vline 
WA_VBKA_LISTE_STR-KTA07 sy-vline 
WA_VBKA_LISTE_STR-KTA08 sy-vline 
WA_VBKA_LISTE_STR-KTA09 sy-vline 
WA_VBKA_LISTE_STR-KTA10 sy-vline 
WA_VBKA_LISTE_STR-KUNNR sy-vline 
WA_VBKA_LISTE_STR-GBSTK sy-vline 
WA_VBKA_LISTE_STR-PARVW sy-vline 
WA_VBKA_LISTE_STR-ADRNR_VBKA sy-vline 
WA_VBKA_LISTE_STR-ZPERS sy-vline 
WA_VBKA_LISTE_STR-NAME_ZPERS sy-vline 
WA_VBKA_LISTE_STR-PARNR sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.